New Results in Numerical and Experimental Fluid Mechanics VII: Contributions to the 16th Stab/Dglr Symposium Aachen, Germany 2008

ISBN-13: 9783642422522 / Angielski / Miękka / 2014 / 626 str.

Andreas Dillmann; Gerd Heller; Wolfgang Schroder

Opis

th This volume contains the papers presented at the 16 DGLR/STAB-Symposium held at the Eurogress Aachen and organized by RWTH Aachen University, Germany, November, 3 - 4, 2008. STAB is the German Aerospace Aerodynamics Association, founded towards the end of the 1970's, whereas DGLR is the German Society for Aeronautics and Astronautics (Deutsche Gesellschaft fur Luft- und Raumfahrt - Lilienthal Oberth e.V.). The mission of STAB is to foster development and acceptance of the discipline "Aerodynamics" in Germany. One of its general guidelines is to concentrate resources and know-how in the involved institutions and to avoid duplication in research work as much as possible. Nowadays, this is more necessary than ever. The experience made in the past makes it easier now, to obtain new knowledge for solving today's and tomorrow's problems. STAB unites German scientists and engineers from universities, research-establishments and industry doing research and project work in numerical and experimental fluid mechanics and aerodynamics for aerospace and other applications. This has always been the basis of numerous common research activities sponsored by different funding agencies. Since 1986 the symposium has taken place at different locations in Germany every two years. In between STAB workshops regularly take place at the DLR in Gottingen.

Spis treści

Numerics.- Interfacial Area Transport Equation in Statistical-Eulerian-Eulerian Simulations of Multiphase Flow.- Application of the Multi-Scale-Finite-Volume Method to the Simulation of Incompressible Flows with Immersed Boundaries.- A Variable-Fidelity Modeling Method for Aero-Loads Prediction.- Modelling and Validation of Covariance Transport Equations for Large-Eddy-Simulation of Ternary, Turbulent Mixing.- An Efficient One-Shot Algorithm for Aerodynamic Shape Design.- Application of a New Roughness Extension for k???? Turbulence Models.- Improved Wall Functions Based on the 1D Boundary Layer Equations for Flows with Significant Pressure Gradient.- A Wall Model Based on Simplified Thin Boundary Layer Equations for Implicit Large Eddy Simulation of Turbulent Channel Flow.- Detached-Eddy Simulation of Supersonic Flow Past Cylindrical Aft Body with and without Base Bleed.- Prediction of the Wind Tunnel Sidewall Effect for the iGREEN Wing-Tailplane Interference Experiment.- The Influence of the Length Scale Equation on the Simulation Results of Aerodynamic Flows Using Differential Reynolds Stress Models.- Efficient Flow Computation Including Turbulent Transport.- Automatic Transition Prediction for Three-Dimensional Aircraft Configurations Using the DLR TAU Code.- Numerical Simulation of the Elastic and Trimmed Aircraft.- Chimera Simulations of Transported Large–Scale Vortices and Their Interaction with Airfoils.- An Approach to the Gust Problem with Interfering Profiles.- Application of the Immersed Boundary Method for the Simulation of Incompressible Flows in Complex and Moving Geometries.- Turbulence Modeling and Detached Eddy Simulation with a High-Order Unstructured Discontinuous Galerkin Code.- An Explicit Space-Time Discontinuous Galerkin Scheme with Local Time-Stepping for Unsteady Flows.- Numerical Simulation of Upstream Moving Pressure Waves in Transonic Airfoil Flow.- Investigation of Resolution Requirements for Wall-Modelled LES of Attached and Massively Separated Flows at High Reynolds Numbers.- Flow Control.- Active Separation Control on the Flap of a Three-Element High-Lift Configuration with Segmented Actuation in Spanwise Direction.- Numerical Investigation of Leading Edge Blowing and Optimization of the Slot Geometry for a Circulation Control Airfoil.- Comparison of the Capability of Active and Passive Methods of Boundary Layer Control on a Low Pressure Turbine Cascade.- Active Secondary Flow Control on a Highly Loaded Compressor Cascade by Periodically Pulsating Jets.- Simulation of Active Flow Control on the Flap of a 2D High-Lift Configuration.- Numerical Investigation of a Jet and Vortex Actuator (JaVA).- Direct Numerical Simulation of Jet Actuators for Boundary Layer Control.- Flowfield-Characteristics Generated by DBD Plasma Actuators.- Laminar Flow Control and Transition.- Identification and Quantification of Shear Layer Influences on the Generation of Vortex Structures.- Global Stability Analysis of Compressible Flow around Swept Wings.- Applications of Symmetry Analysis in Stability Theory.- Investigation on Actuator Arrays for Active Wave Control on a 2D Airfoil.- Experimental Flow Studies on Separation and Reattachment in the Vicinity of Sharp,Wedge Shaped Leading Edges at Low Reynolds Numbers.- Receptivity Considerations for Cascaded Actuators Generating Tollmien-Schlichting Waves.- Numerical Investigation of Transition Control by Porous Surfaces in Hypersonic Boundary Layers.- Investigation of Laser Generated Perturbations for Boundary Layer Stability Experiments.- Experimental Simulation and Test Techniques.- Eulerian and Lagrangian Insights into a Turbulent Boundary Layer Flow Using Time Resolved Tomographic PIV.- An Automated Test Section for the Experimental Optimization of Multi-element High-Lift Systems.- Application of Pressure-Sensitive Paint for Determination of Dynamic Surface Pressures on a 30 Hz Oscillating 2D Profile in Transonic Flow.- Simultaneous Measurements of Unsteady Aerodynamic Loads, Flow Velocity Fields, Position and Wing Deformations of MAVs in Plunging Motion.- Development of a Thermo-Optical Sensor for Measurements of Wall Shear Stress Magnitude and Direction.- Flow–Induced Oscillation of a Flat Plate – A Fluid–Structure–Interaction Study Using Experiment and LES.- Investigations to the Response Time of a Glued Thermocouple on the Basis of Experimental and Numerical Analyses.- Hypersonic Flows and Aerothermodynamics.- Shock Tunnel Experiments and CFD Simulation of Lateral Jet Interaction in Hypersonic Flows.- Heat Transfer at the Nose of a High-Speed Missile.- Analysis of Jet Thruster Control Effectiveness and the Interaction with Aerodynamic Surfaces for a Slender Cylindrical Missile.- New Explanation of Noise Production by Supersonic Jets with Gas Dredging.- Pattern Recognition in High Speed Schlieren Visualization at the High Enthalpy Shock Tunnel Göttingen (HEG).- Preliminary Design of a Mach 6 Configuration Using MDO.- Numerical Investigation of the Isolator Flow Field of a SCRAMJET Engine with Elevated Wall Temperatures.- Numerical Simulation of Nozzle Flow into High Vacuum Using Kinetic and Continuum Approaches.- Advanced Flight Analysis of SHEFEX-I.- Analysis of the Heat Transfer in Liquid Rocket Engine Cooling Channels.- Aeroacoustics.- Analysis of High-Lift Generated Noise via a Hybrid LES/CAA Method.- Acoustics and Turbulence Related to the Flow over a Flexible Plate Structure behind an Obstacle.- Large–Eddy Simulation of Three–Dimensional Cavity Flow Using a Time–Conservative Finite–Volume Method.- A Hybrid Method for CAA.- Aerodynamic and Aeroacoustic Analysis of Contra-Rotating Open Rotor Propulsion Systems at Low-Speed Flight Conditions.- Computation of Trailing Edge Noise with a Discontinuous Galerkin Method.- Biomedical Flows.- Towards Numerical Simulation and Analysis of the Flow in Central Airways.- Protective Artificial Lung Ventilation: Impact of an Endotracheal Tube on the Flow in a Generic Trachea.- Numerical Simulation of Nasal Cavity Flow Based on a Lattice-Boltzmann Method.- Simulation of the Flow in a Human Nose.- Airplane Aerodynamics.- Aerodynamics of the Wing/Fuselage Junction at an Transport Aircraft in High-Lift Configuration.- Numerical and Experimental Investigation of a Stalling Flow-Through Nacelle.- Minimal Induced Drag for Non-planar Lifting Surfaces with Moderate and Small Aspect Ratio.- Convection and Mixing.- Vortex-Generator Pairs for Vortex-Induced Heat-Transfer Enhancement in Heat-Exchanger Channels.- Radiation Heat Transfer in Mixed Convection Flows.- Flow Structure Formation of Turbulent Mixed Convection in a Closed Rectangular Cavity.- Miscellaneous.- Numerical Determination of Nozzle Admittances in Rocket Engines.- Analysis of Vertical Axis Wind Turbines.- Numerical Analysis of the Influence of Tip Clearance Width in a Semi Open Centrifugal Compressor.- Aerodynamic Analysis of a Helicopter Fuselage.- Truck Interference Effects on a Car during an Overtaking Manoeuvre: A Computational Study.

O autorze

Wolfgang Schröder ist Leitender Oberarzt an der Chirurgischen Universitätsklinik Köln. Er ist Mitglied im Präsidium des Berufsverbands der Chirurgen (BDC), leitet die Weiter- und Fortbildungsakademie des BDC.

Blurb

This volume contains the contributions to the 16. Symposium of the STAB (German Aero-space Aerodynamics Association). In this association all those German scientists and engi-neers from universities, research establishments and industry are involved, who are doing research and project work in numerical and experimental fluid mechanics and aerodynamics, mainly for aerospace but for other applications, too. Many of the contributions are presenting results from national and European Community sponsored projects. The volume gives a broad overview over the ongoing work in this field in Germany, with the topics being high-aspect ratio wings, low aspect-ratio wings, bluff bodies, laminar flow control and transition, active flow control, hypersonic flows, aeroelasticity, aeroacoustics, mathematical fundamentals/ numerical simulation, physical fundamentals, and facilities.